Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. . 354 TRIUMPHS AND WONDERS OF THE XIXth CENTURY are raised, and the draw is then free to turn. The wedges are operated byhydraulic rams. Chicago Drainage Canal. — It will probably be a surprise to manypeople to learn that this drainage canal has a greater cross sectionthroughout the earth-work sect
Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. . 354 TRIUMPHS AND WONDERS OF THE XIXth CENTURY are raised, and the draw is then free to turn. The wedges are operated byhydraulic rams. Chicago Drainage Canal. — It will probably be a surprise to manypeople to learn that this drainage canal has a greater cross sectionthroughout the earth-work sections than any ship canal in existence, andis only exceeded through the rock sections by the Manchester canal. Thecity of Chicago obtains its water supply from Lake Michigan. The intake pipe was at first located comparatively near the shore. As the population ofthe city grew and the volume of its sewage increased, it was observed thatthe water supply was becoming contaminated. The Chicago Elver, intowhich the sewage was emptied, became so foul that the odor was very evident fact of this odor probably had more to do with the promotionand accomplishment of the means of relief adopted than the far less evidentbut very dangerous pollution of the water supply. An extension of the i
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Keywords: ., bookcentury1800, bookdecade1890, bookidtri, booksubjectinventions
